Pump valve



atented Sept. 8, 1925.

llllNlTED STATES d EDDY D. NIXON, OF HOUSTON, TEXAS.

PUMP VALVE.

Application filed 0'ctober 12, 1923. Serial No. 668,159.

To all whom it may concern: 7

Be it known that I, JEDDY D. NIXON, a citizen of the United States, residing at Houston, in the county of Harris and State of Texas, have invented certain new and useful Improvements in a Pump Valve, of which the following is a specification.

This invention relates to new and useful improvements in a pump valve.

One object of the invention is to provide a valve of the character described, specially designed for use in deep well pumps, particularly such pumps as are commonly used for pumping oil from oil wells. Pumps of this character, as now constructed embody a working barrel, a traveling valve therein, and a standing valve connected to the lower end of the barrel by a special type of coupling having a valve seat therein forming part of said standing valve. It is also common to use a type of standing valve, the cage of which projects up into the working barrel and in order to use said type the valve seat in said coupling must be bored or reamed out so as to give room for said cage to enter into the working barrel. Said working barrel and its bottom coupling are standard, and common to pumps'of the character under consideration, but as at present constructed, whichever type of standing valve is employed, the fluid passageway through said standing valve is restricted, and much less than the diameter of theworking barrel, so that, on account of said restriction, the pump is not supplied with the volume of fluid it would otherwise be capable of handling. It is one of the prime objects of this invention to provide a pump standing valve which may be readily attached to the conventional working barrel coupling, and conventional working barrel, without the necessity of making any change in said coupling or barrel, and which will have greater capacity for permitting the inflow of fluid into the working barrel than is the case with standing valves now in common use.

A further feature of the invention resides in the provision of a pump valve of the character described which is of very simple construction, is durable in use, and may be cheaply produced.

With the above and other objects in view this invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which given in this specification and i illustrated in the accompanying drawings, wherein Figure 1 shows a fragmentary vertical sectional view of a pump, showing my improved form of standing valve therein; and, Figure 2 shows a transverse sectional view thereof, taken on the line 2-2 of Figure 1. I

Referring now more particularly to. the drawings, wherein like numerals of reference designate similar parts in each of the figures, the numeral 1 designates the working barrel of the pump, and to the lower end of which is attached the coupling 2. These parts are of conventional construction, and the coupling has an internal annular valve seat to be used with certain types of standing valves. When certain other types of standing valves are used, which project up into the lower end of the working barrel, this seat 3 must be reamed, or bored, out to make room for said valve.

The numeral 4 designates a valve casing,

The valve body is designated by the numera-l 6, and is tubular in form. Its upper end is stepped and outwardly threaded so as to screw up into the lower end of said casing and also to receive the clamp nut 7 which holds the annular valve seat 8 in place. Integral with the clamp nut 7 and upstanding therefrom, there is a valve cage 9 which confines the ball valve 10 in proper.

relation to the seat 8, which it controls. The enlarged casing admits of a larger cage and valve, as also a larger fluid opening 11 up through the body and valve seat, and consequently more capacity for the flow of fluid up through said valve.

The lower end of the body is internally stepped and threaded as at 12 and 13, and a tubular gas anchor 14 has its upper end threaded up into said threaded part 12,. and

the upper end of the screen 15 is threaded up into the threaded part 13, said screen being of any conventional type and surrounding, and being spaced from, said anchor.

What I claim is 1. The combination with a pump Working barrel having a coupling on its lower end, and a downwardly converging valve seat in said coupling, of a tubular valve casing whose upper end is reduced and screwed into the lower end of the coupling, said valve casing, beneath said reduced end, having an inside diameter not less than the inside diameter of said barrel, a tubular valve body whose upper end is screwed up into the lower end of the casing and provided with a valve seat, a valve cage attached to said body, and located within said casing and a valve cooperating with said seat and located within said cage.

2. The combination with a pump Working barrel having a converging valve seat at its lower end, of a valve mechanism attached to the lower end of the barrel, said valve mechanism embodying a valve casing having a larger inside diameter thanthe inside diameter of the barrel, a tubular body whose upper end is threaded up into the lower end of the casing and provided with a valve seat, a valve cooperating with said seat, and a valve cage attached to said body and confining said valve.

In testimony whereof I have signed my name to this specification.

JEDDY D. NIXON. 

